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Re: [2.23 PATCH] Desupport regexp.h (bug 18681)
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Carlos O'Donell <carlos at redhat dot com>
- Cc: Zack Weinberg <zackw at panix dot com>, <libc-alpha at sourceware dot org>
- Date: Mon, 17 Aug 2015 16:53:41 +0000
- Subject: Re: [2.23 PATCH] Desupport regexp.h (bug 18681)
- Authentication-results: sourceware.org; auth=none
- References: <20150805152109 dot 2FDA114B9A at panix1 dot panix dot com> <mqs78o$a16$1 at ger dot gmane dot org> <55D1E207 dot 30203 at panix dot com> <20150817135629 dot GE1584 at vapier> <55D20B19 dot 9030303 at redhat dot com>
On Mon, 17 Aug 2015, Carlos O'Donell wrote:
> One of the big benefits of -Wundef -Werror was to prevent this kind
> of error from happening. We made the build use -Wundef, and that way
> if you failed to define the right things in Versions it would fail
> the build (see the problem we had with librt symbols in 2.18 that
> prompted the entire -Wundef work).
>
> How was Zack able to build glibc at all?
We never removed -Wno-error=undef, because while we got the glibc build
itself clean from -Wundef warnings, we didn't achieve that for the
testsuite.
--
Joseph S. Myers
joseph@codesourcery.com